fieldset.Ocean {
    display:none;
    padding:0;
}
fieldset.River {
    overflow:auto;
    padding:0;
    min-width:160px;
    min-height:200px;
    float:left;
}
fieldset.River div.output div.item {

}
fieldset.River div.output div.item:hover {
    background-color:red;

}
fieldset.Target {
    padding:0;
    min-width:160px;
    min-height:80px;
}
fieldset.Target div.output {
    overflow:auto;
}
fieldset.Source {
    padding:0;
    min-width:160px;
    min-height:30px;
}
fieldset.Storm {
    padding:0;
    min-width:160px;
    min-height:200px;
    float:right;
}
fieldset.Steam {
    display:none;
    padding:0;
}